Trumpet coral

[Ninjuno]

Hi, I just fed my corals I lightly feed zooplankton with a pipet. As soon as I lightly squirted over my trumpet coral it immediately shriveled up more than usual and started excreting a green substance that I’ve never seen. Any ideas ?

 

[Ninjuno]

Hi, I just fed my corals I lightly feed zooplankton with a pipet. As soon as I lightly squirted over my trumpet coral it immediately shriveled up more than usual and started excreting a green substance that I’ve never seen. Any ideas ?